CN203039834U

CN203039834U - OLT device for EPON system

Info

Publication number: CN203039834U
Application number: CN 201220646997
Authority: CN
Inventors: 吴琦
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-11-30
Filing date: 2012-11-30
Publication date: 2013-07-03
Anticipated expiration: 2022-11-30

Abstract

Disclosed in the utility model is an optical line terminal (OLT) device for an EPON system. The OLT device comprises a housing, an OLT card plug-in board, and a network management card plug-in board, wherein the OLT card plug-in board and the network management card plug-in board are arranged inside the housing. The OLT card plug-in board includes an OLT main chip, a PON port optical module, an SFP optical module, an ARM9 chip, a data memory, and a serial port, wherein PON port optical module, the SFP optical module, the ARM9 chip, the data memory, and the serial port are respectively connected with the OLT main chip; and the network management card plug-in board includes a network management main chip, a PHY chip, and a switch switchboard chip, wherein the PHY chip and the switch switchboard chip are respectively and successively connected with the network management main chip. Besides, the network management main chip is connected with the data memory; and the switch switchboard chip is respectively connected with the PON card plug-in unit and a network management interface. According to the utility model, a terminal user with the wide access bandwidth and much access is provided and the operation investment cost is effectively reduced. Moreover, the OLT device has the characteristics of high integration, flexible application, high reliability, QOS guarantee providing as well as the capabilities of managing, flexible capacity expanding, and networking.

Description

A kind of OLT equipment for the EPON system

Technical field

This practical networking technology area that newly relates to relates in particular to a kind of OLT equipment for the EPON system.

Background technology

EPON is a kind of emerging broadband access technology, and it realizes that the integrated service of data, voice and video inserts, and have good and economic that EPON also will become a kind of main flow broadband access technology by a single Fiber Access System.Because EPON network configuration, the special superiority of registering one's residence in the broadband, and the combination natural with computer network, EPON are the best transmission media of realizing " unification of three nets " and solving information superhighway " last kilometer ".EPON combines the broadband access technology of Ethernet and PON, as everyone knows, Ethernet is simple and easy to use, easy for installation, use extensively, but also have some problems always, short such as transmission range, have only about 100 meters, the working method of sharing is defectiveness also, and particularly these problems are more obvious when extensive the use.

The utility model content

Technical problem to be solved in the utility model is: a kind of OLT equipment for the EPON system is provided, and it has integrated level height, applying flexible, high reliability and provides that service quality (QOS) guarantees, can manage, the characteristics of dilatation and networking flexibly.

For solving the problems of the technologies described above, the utility model proposes a kind of OLT equipment for the EPON system, comprise housing and be arranged on OLT plug-in card plate, the webmaster plug-in card plate of enclosure interior, PON mouth optical module, SFP optical module, ARM9 chip, data storage, serial ports that described OLT plug-in card plate comprises the OLT master chip and is connected with the OLT master chip respectively;

Described webmaster plug-in card plate comprises webmaster master chip and the PHY chip, the switch exchanger chip that are connected successively with the webmaster master chip respectively, and the webmaster master chip is connected with data storage, and the switch exchanger chip connects PON plug-in card and network management interface respectively.

Further, described OLT plug-in card plate comprises 2 PON mouths.

Further, described housing is provided with the Ethernet interface chip of all PON plug-in cards of management.

Technique scheme has following beneficial effect at least: the utility model provides higher access bandwidth, can insert more terminal use, effectively reduces the operation cost of investment.It has integrated level height, applying flexible, high reliability and provides that service quality (QOS) guarantees, can manage, the characteristics of dilatation and networking flexibly.

Description of drawings

Fig. 1 is the theory diagram that the utility model is used for OLT plug-in card plate in the OLT equipment of EPON system.

Fig. 2 is the theory diagram that the utility model is used for webmaster plug-in card plate in the OLT equipment of EPON system.

Embodiment

Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Below in conjunction with accompanying drawing the utility model is described further.

As shown in Figure 1 and Figure 2, of the present utility modelly comprise housing and be arranged on two blocks of OLT plug-in card plates 1 and a webmaster plug-in card plate 2 of enclosure interior for the EPON network equipment.

PON mouth optical module 12, SFP optical module 13, ARM9 chip 14, data storage 15, serial ports that OLT plug-in card plate 1 comprises OLT master chip 11 and is connected with OLT master chip 11 respectively; Webmaster plug-in card plate 2 comprises webmaster master chip 21 and the PHY chip 22, the switch exchanger chip 23 that are connected successively with webmaster master chip 21 respectively, webmaster master chip 21 is connected with data storage 15, and switch exchanger chip 23 also connects PON plug-in card 24 and network management interface 25 respectively.

Wherein, OLT master chip 11 is the controllers for optical line terminal (OLT), provides service strategy, fail safe and authentication to manage to satisfy the application requirements of operator; The quantity of PON mouth optical module 12 has 2, and it is used for the transmitting-receiving of light signal and the conversion between the photoelectricity, and two gigabit optical interfaces are provided, and OLT master chip 11 built-in parallel series and staticizers are connected with PON mouth optical module 12 by two pairs of differential lines; Two SFP optical modules 13 are provided, it is used for connecting local side (incoming end) equipment, receive the ethernet signal of first line of a couplet equipment, give OLT master chip 11 after the processing, and give the ONU of far-end through the PON of OLT oral instructions, OLT master chip 11 built-in parallel series and staticizers are connected with SFP optical module 13 by two pairs of differential lines; PHY chip 22 is mainly used to the system that manages this equipment and connect, and the administrative staff of supply equipment use, and is connected with OLT master chip 11, and the while can be used for connecting exchanger chip, realizes the webmaster to polylith PON card thus; Data storage 15 is used for storing the systems soft ware of OLT, and OLT is started and operate as normal, also is used for storing the WEB management system software, and webmaster is started and operate as normal.

Webmaster master chip 21 is 1 high performance single-chip gigabit ethernet network processor; This network management system can realize the WEB management, whole PON system is controlled and manages, the management mouth of the PON plug-in card 24 of polylith OLT converges at exchanger chip by the management mouth, and exchanger chip is connected with webmaster master chip 21 by gigabit PHY, thereby realizes the webmaster to polylith PON card; The port of switch exchanger chip connects PON plug-in card 24 by housing; 1 network management interface 25 of switch output is for user management EPON system.

Also be provided with the Ethernet interface chip of all PON plug-in cards of management at housing.

The above is embodiment of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection range of the present utility model.

Claims

1. OLT equipment that is used for the EPON system, comprise housing and be arranged on OLT plug-in card plate (1), the webmaster plug-in card plate (2) of enclosure interior, it is characterized in that described OLT plug-in card plate (1) comprises OLT master chip (11) and the PON mouth optical module (12) that is connected with OLT master chip (11) respectively, SFP optical module (13), ARM9 chip (14), data storage (15), serial ports;

Described webmaster plug-in card plate (2) comprises webmaster master chip (21) and the PHY chip (22), the switch exchanger chip (23) that are connected successively with webmaster master chip (21) respectively, webmaster master chip (21) is connected with data storage (15), and switch exchanger chip (23) connects PON plug-in card (24) and network management interface (25) respectively.

2. the OLT equipment for the EPON system according to claim 1 is characterized in that, described OLT plug-in card plate comprises 2 PON mouths.

3. the OLT equipment for the EPON system according to claim 1 is characterized in that, described housing is provided with the Ethernet interface chip of all PON plug-in cards of management.